Questions tagged [error]

https://en.m.wikipedia.org/wiki/Error

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ProviderError: execution reverted using hardhat deploy plugin

I am working on a mini-version of a DEX and I am using the hardhat-deploy plugin. I was trying to test my createNewPairing method and ran into this error: AssertionError: Expected transaction to be ...
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`oversized data {"name":"ProviderError","code":-32000,"_isProviderError":true} ProviderError: oversized data`

I am trying to deploy a NFT smart contract which takes 1 parameter that is an array of length 8912. The problem is the array length. I have tested with an array of length 100 and it works perfectly ...
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Uniswap v2 remove liquidity ds-math-sub-underflow

I am testing an ERC20 token on hardhat and running into this error when trying to removeLiquidity. 'ds-math-sub-underflow'. Currently testing this process: Adding liquidity swapping a few times ...
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Reentrancy Ethernaut Challenge

I have been trying to pass the Reentrancy attack challenge of Ethernaut. Hence, I am creating this issue to ask help from anybody who knows where is the problem coming from. First of all, here is the ...
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The Ethernaut King Challenge

I am trying to pass level 9 of Ethernaut challenges known as the King contract. My designed contract for hacking the King contract is as follows: pragma solidity 0.8.0; contract MaliciousKing { ...
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Lost my Private key but ı have keystore

I have mew v2 json file. I want to convert this file to v3 utc via geth but I am getting an error, what should I do? i get the same error on windows 10 and linux (kali and ubuntu) Geth Error: Fatal: ...
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Metamask: Error encountered during contract execution [Reverted]

I am trying to work with the smart contract I found on: https://github.com/pappas999/Parametric-Crop-Insurance/blob/main/contracts/Crop-Insurance.sol I can deploy the contract but when I try to ...
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todayToken .sol not compiling on remix ethereum - getting error with import “./EIP20Interface.sol”; ?? ANY SOLUTION IDEAS?

pragma solidity ^0.4.21; import “./EIP20Interface.sol”; contract TodayTOKEN is EIP20Interface { uint256 constant private MAX_UINT256 = 2**256 - 1; mapping (address => uint256) public ...
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Error: Transaction reverted: function call to a non-contract account when adding liquidity through UniswapV2Router

I've been testing around UniswapV2 using hardhat and I always get this error when I try to add liquidity through the addLiquidity function on UniswapV2Router. For the test, I deployed mock tokens, ...
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New to coding. Trouble writing out truffle migrate —reset

So I am coding along with my teacher in Visual Studio Code and things are going pretty good, it’s only when I go to the terminal to compile the smart contracts we wrote out is where the problem comes ...
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Why does solidity's try/catch not catch "call to non-contract address" revertion?

Recently I encountered the issue that the try/catch command of solidity does not catch the revertion when I'm trying to call a non-contract address in the try line. While I'm aware of multiple ...
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Is there a way to add all revert error strings to an ethers js interface?

According to this tool if a contract call has a revert message that starts with the signature 0x08c379a0 then the error message is in the format Error(string) i.e. a standard revert error string(e.g. ...
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Encountered an error while attempting to update latest block (error code 1020 on Polygon mainnet)

I'm trying to migrate a smart contract on Polygon (Matic) mainnet through truffle, but I get the following error: node_modules\@trufflesuite\web3-provider-engine\subproviders\rpc.js:57 const ...
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Can't import OpenZeppelin Ownable contract

I'm following freecodecamp's solidity course but am unable to import Ownable from OpenZeppelin into my contract. Using brownie, this is what I have so far: and in the config.yaml file: And when I ...
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Gas estimation failed when trying to add liquidity to uniswapRouterV2 on ropsten

This is the function trying to add liquidity in my ERC20 token, I call it from remix function addLiquidity(uint256 LPAmount, uint256 ethAmount) public onlyRole(MINTER_ROLE) {//owner is granted minter ...
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How to use Proxies in Ethers?

I'm trying to use Proxies in Ethers. My Solidity file: //SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; import "@openzeppelin/contracts/proxy/transparent/TransparentUpgradeableProxy....
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transaction ran out of gas

No matter how much gas i provide this one function it failsas it runs out of gas, i have used a tool to check how much gas it is using and it is not overly high compared to other functions. I cant see ...
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contractLogicError on Web3 but working on Remix

I have this contract code, which works fine on remix, but I cannot run with web3 in python, getting a contractLogicError. // SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface IERC20 { ...
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Gas estimation error in really simple code

When I try to deploy this code without any Value in Remix it works just fine, but as soon as I add any value to this I get the error message: Gas estimation errored with the following message (see ...
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revert InvalidCalldata error VRFCoordinator

I am using a clone of the pancakeSwap lottery and attempting to use a write function. I keep getting an error in the BSC testnet VRFCoordinatorV2 contract saying revert InvalidCalldata();. The ...
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CompileError: DeclarationError: Identifier already declared

Wondering if anyone has a fix/idea for this. The error seems to be with the import below. I have tested it with remix and the smartcontracts all work fine with me importing directly from github. I ...
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Forking Contract, Can't find where I am missing address argument

As it states in the title. Trying to learn by doing some immersion in modifying contracts. I am stumped here, when I go to deploy through REMIX I get a Error: Invalid address. I can't figure out where ...
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I'm trying to migrate the second file but it can not find the artifacts file

Migrations file: const wallet = artifacts.require("wallet"); module.exports = async function (deployer, _network, accounts) { await deployer.deploy(Wallet, [accounts[0], accounts[1], ...
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Error while running a python script in Brownie

I ran the following python script in brownie def main(): print("Hello World!") via $ brownie run scripts/deploy.py and got the following TypeError PS D:\.Works\.CS\Web3\...
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Brownie - TypeError: int() argument must be a string, a bytes-like object or a real number, not 'TransactionReceipt'

I made a simple voting smart contract and got a TypeError when I was testing the function "test_can_endorse_candidate". Solidity Code: // SPDX-License-Identifier: MIT pragma solidity ^0.6.6;...
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How to proper error handling web3 lib without require or event?

I am digging for a while here on stack, I've found few question on the matter, but I honestly didn't find quite good answers. here and here, for instance. If I get this right we can get error through ...
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I am getting a Source error when importing @Chainlink. My project will compile. How can I avoid this error, or should I just ignore it?

I do not know what the issue is as I am on version 0.6.6 Solidity both in my compiler and in my code, and I am using all of the same versions of the packages that Patrick used. I find it even more ...
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TypeError: Operator * not compatible with types int256 and uint256 --> contracts

Fairly new at this so there's probably an obvious answer. I was just playing around with an interest bearing contract. this below works out fine: uint interestPerSecond = _interest * (_amount / 1e16); ...
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Installed eth-cli on command line ubuntu 20.4, but command not found?

Sorry but a bit new to this. I used the command to install eth-cli: npm install -g eth-cli But I get all these deprecated errors and the command "eth-cli" shows command not found. How do I ...
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How can I properly define a value and call it with .retrieve in Brownie?

transaction = simple_storage.store(15, {"from": account}) transaction.wait(1) updated_store_value = simple_storage.retrieve() print(updated_stored_value) This is the code that I am using in ...
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Creating a dynamic Array- Solidity- Error

Declaration Error: Identifier not found or not unique contract MexicoCity { uint256 public favoriteNumber; function store(uint256 _10time) public { favoriteNumber = _10time; ...
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Newby learning Solidity - Parser Error

I am getting this error when I try to compile Airlines.sol:49:5: ParserError: Expected '{' but got 'illegal' ➥ public{ Here is the code: pragma solidity ^0.6.0; //SPDX-License-Identifier: ...
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Error from Remix IDE : "ParserError: Expected primary expression"

This Is My Code pragma solidity ^0.4.4; contract Token { /// @return total amount of tokens function totalSupply() constant returns (uint256 supply) {} /// @param _owner The address from which the ...
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A function made in my contract while trying to compile the contract showed this; TypeError: Referenced declaration is neither modifier nor base class

//SPDX-Licence-Identifier: MIT pragma solidity ^0.8.11; contract PurchaseAgreement { // VARIABLES uint public value; address payable public seller; address payable public buyer; ...
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my nft not showing?

// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import ...
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Unable to install Truffle - cli.bundled.js error

I'm unable to install Truffle. After installing I try the commands Truffle unbox pet-shop & Truffle --version and I always get the same error which is the inability to find cli.bundled.js. I've ...
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I'm getting: TypeError: Member "balanceOf" not found or not visible after argument-dependent lookup in contract

On the line where it says require(tokenContract.balanceOf(this) >= _numberOfTokens); is where I'm receiving the TypeError. Any suggestions on how to fix this? pragma solidity ^0.8.12; ...
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Proper JS error handling of contract function

I am making JS calls to my contract function like this: contract.methods.userMint(q).send({ from: walletaddr, value: cost }).once('receipt', (receipt) =&...
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ERC721 Mint Stack Too Deep Error

So i'm getting this stack to deep error function mint() public payable{ require(commonImages.length > 0); require(uncommonImages.length > 0); require(rareImages.length &...
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Error: Non-hexadecimal digit found - brownie

When i run brownie run scripts/deploy.py the terminal gives me this error : Brownie v1.16.4 - Python development framework for Ethereum BrownieSimpleStorageProject is the active project. Launching '...
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Why do I have a declaration error showing Identifier not found or not unique

I am writing the smart contract for NFT. it is my first one. it is showing the DeclarationError as below and I do not know how to solve it. Could you please kindly help me? Thank you from solidity: ...
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NONCE_EXPIRED error with ethers.js on local hardhat node

I'm trying to call multiple (3) times this Solidity function function mint(address to, uint256 id) public onlyOwner { ERC1155._mint(to, id, 1, ""); } from this TS code contract = ...
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Expected value of type string and private key too short errors

I got stuck with hardhat config. My .env looks like this: API_URL="https://eth-ropsten.alchemyapi.io/v2/T4w-Ys... my API URL..." PRIVATE_KEY="b285d...my private key..." and hardhat....
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Expected in: flat namespace after install brownie

i installed brownie with pipx but when i type any command i get this: Traceback (most recent call last): File "/Users/lorisfacchinetti/.local/bin/brownie", line 5, in <module> ...
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Accessing and storing a Struct from external contract

I was trying to access and store a Struct from an external contract. Is there a way with which this is possible. This would be a simple PoC where I am trying to access a Struct from Student contract ...
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Internal JSON-RPC error. ethers

quoteRes is the response from api getQuote of Ox code: const gasPrice = await providerEthers.getGasPrice(); const wallet = ethers.Wallet.createRandom(); const singer = wallet.connect(...
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How to get error code of failed transaction [duplicate]

I tried to use web3.eth.getTransaction, web3.eth.getTransactionReciept and try to get by block number. Maximum, that I got - it's: status: false But I need to get "T3".
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Abi.encode + Stack too deep

I need to encode a bunch of variables that are part of an EIP712 message. Unfortunately I hit the stack too deep exception when I added hashParent(swap.parent) :( bytes32 swapHash = keccak256( ...
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How do I fix ERR_UNKNOWN_URL_SCHEME when trying to GET an ipfs url?

For example, I want to render some NFTs that have urls like this: ipfs://QmZ5fD3UTRh8ALZCpMdypHkhMQSXyi4yyCz3Ea19kPmtXg/0.jpg but when I try to fetch this uri in my react app, I get this error: GET ...
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Handling errors from external contracts

Can you share your experience of how to handle the errors with external contrat calls. Example: interface contractX { function balanceOf(address owner) external view returns (uint256); } contract ...
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